h1{
    text-align: center;
    color: pink;
}
#container{
    margin: 50px 300px;
    width: 760px;
    height: auto;
}
#add{
    background-color: #3EAA23;
}
#preview{
    background-color: #EEC822
}
table { 
    margin: 1em 0; 
    border-collapse: collapse; 
    width: 860px; }
table th { 
    border: 1px solid #eee; 
    padding: .6em 10px; 
    text-align: left;
    text-align: center;
}
.delete{
    background-color: red;
}